Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b14f5bd313adea…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 07:00:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9098a7b7b36fc1d882c3304589091ab1 SHA-1: 80d14eca1fc18dd91f12243f747ac36e6227b478 SHA-256: 88b14f5bd313adea02f526273552eec6482f1cd1952bda3765e851b79c823e44
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body and extracted URLs indicate a lure for game-related cheats or currency, such as 'Free Robux'. The presence of 'cmd_GM431946152.pdf' and the ML classifier firing suggest malicious intent, likely to download and execute a second-stage payload. The document's content and structure align with a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-on-iphone-game-hack
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/freecoins_GM406889139.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today-2021_GM406889139.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-roblox-pin-codes_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/hack-robux-pastebin_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/haktuts-coin-master-hack_GM406889139.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/getbucks-com-free-robux_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-play-roblox-for-free_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/roblox-phantom-forces-hack_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/wurst-client-18-9_GM479516143.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-using-cmd_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/minecraft-app-free-download_GM479516143.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-roblox-generator_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/cm-free-spin-link-today_GM406889139.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-roblox-svg_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-spins-coin-master-unlimited_GM406889139.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/roblox-svg-free_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/roblox-hand-hack_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/roblox-new-hack-exploit-2021-still-works_GM431946152.pdf
    • https://elearning.mtsn2pml.sch.id/__stat
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030e9.bin
eb55b60b3ac12745e93a1e70fef68148253298153d134adffb1bf7f49016d5b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30E9 22440 bytes
font_01_sfnt_off00006344.bin
d8417ca89321b4dfc415403c7a814e3f2ba31710bdc313f579f3c567c18c0aac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6344 19060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.